C. the endometrial lining of the uterus
The biosphere is the worldwide sum of all ecosystems. Biodiversity is the variation of genetic species in the ecosystem.
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Answer:
The inner or cytoplasmic membrane, impermeable to polar molecules, regulates the passage of nutrients, metabolites, macromolecules, and information in and out of the cytoplasm and maintains the proton motive force required for energy storage.
Explanation:
The answer is: [D]: hydrochloric acid (HCl).
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Hydrochloric acid (HCl) contains no carbon atoms; therefore it is NOT an organic molecule.
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